Semaglutide Peptide Vials
Synthetic GLP-1 receptor agonist peptide · 2mg–50mg · boxes of 10 vials
Free delivery worldwide on orders over $1,000 (about £749)
Strength 8 options · price per box
Boxes
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- No minimumBoxes of 10 vials
- Tracked shippingDispatched in 1–2 working days
- Batch COAFree on request
- Photographed firstBefore it ships
Purity guarantee and free replacement within 14 days if anything arrives damaged or wrong. How it works
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Often ordered together
One box of each. Change strengths or quantities in the cart.
Also ordered with Semaglutide
About Semaglutide
What is Semaglutide?
Overview
What is Semaglutide?
Semaglutide is a synthetic 31-residue analogue of glucagon-like peptide-1 (GLP-1). Two substitutions in the backbone and a C18 diacid attached through an AEEA linker slow enzymatic breakdown and promote albumin binding. It is supplied as a lyophilised powder in sealed vials, boxed in tens, for laboratory research use only. Each semaglutide vial holds a single strength, from 2 mg to 50 mg. It is an analogue of a naturally occurring peptide, so the semaglutide peptide referred to in research listings and the compound on this page are one and the same.
Semaglutide at a glance
| Compound | Semaglutide |
|---|---|
| Also known as | NN9535, semaglutide peptide, GLP-1 analogue, semaglutide sodium |
| Classification | Synthetic GLP-1 receptor agonist peptide |
| CAS number | 910463-68-2 |
| Molecular formula | C187H291N45O59 |
| Molecular weight | 4113.58 g/mol |
| Sequence | 31-residue GLP-1 analogue, Aib8 and Arg34 substituted, C18 diacid attached via an AEEA linker |
| PubChem CID | 56843331 |
| Purity | 99%+ by HPLC |
| Physical form | Lyophilised powder |
| Available strengths | 2 mg, 5 mg, 10 mg, 15 mg, 20 mg, 30 mg, 40 mg, 50 mg |
| Box quantity | 10 vials |
| Price from | $5.50 per vial ($55.00 per box) |
| Research status | An approved prescription medicine in the UK and many other countries. Supplying it as a medicine outside the regulated pharmaceutical chain is unlawful. Research-grade material is supplied here strictly as a laboratory reference material. |
| Documentation | Batch-specific third-party COA |
These are catalogue target specifications, not batch results. The 99%+ purity figure is the specification we buy to. The authoritative figures for any particular box are the ones printed on that box’s Certificate of Analysis, which is lot-specific. What research grade actually means explains the difference. Terms such as HPLC purity and net peptide content are explained in the peptide glossary.
We make no “third-party verified” claim for a batch unless the matching report is supplied with it. Ask for the current COA for the lot in stock before you order — we will send it.
Prices for every strength
Pricing
Semaglutide price per vial: 2mg, 5mg, 10mg to 50mg
Semaglutide starts at $5.50 per vial (£4.12), sold in boxes of 10 at $55.00. One box is the smallest order and there is no trade account or minimum spend. Larger volumes are negotiable.
| Strength | Per vial | Box of 10 |
|---|---|---|
| 2 mg | $5.50 £4.12 | $55.00 £41.21 |
| 5 mg | $6.73 £5.04 | $67.28 £50.41 |
| 10 mg | $7.47 £5.60 | $74.71 £55.97 |
| 15 mg | $8.03 £6.02 | $80.28 £60.15 |
| 20 mg | $8.40 £6.29 | $84.00 £62.93 |
| 30 mg | $9.33 £6.99 | $93.28 £69.89 |
| 40 mg | $11.93 £8.94 | $119.28 £89.36 |
| 50 mg | $12.86 £9.63 | $128.57 £96.32 |
What to check before ordering, and what UK delivery involves: our semaglutide UK guide (licensed medicine vs research grade, legal status, prices).
Buying from the US: our semaglutide US guide (FDA status, dollar prices, US shipping).
Storage & reconstitution
Handling
How should Semaglutide be stored and reconstituted?
Sealed vials tolerate ambient temperature in transit and keep at −20 °C beyond that. Reconstitute slowly down the vial wall, swirl rather than shake, then refrigerate at 2–8 °C and aliquot before freezing.
Why each of those matters, and what a freeze–thaw cycle actually costs: peptide handling and storage reference. How long a mixed vial keeps: reconstituted peptide shelf life.
What it is researched for
Research Context
What is Semaglutide researched for?
Below is a plain-English summary of what published research has investigated, and what it has found. These are descriptions of research activity and published results. They are not claims about what Semaglutide does, and nothing here is a statement that it is safe or effective for any purpose.
GLP-1 receptor activation
Semaglutide binds the GLP-1 receptor, found on pancreatic cells and on brain regions involved in appetite regulation. Activation increases insulin release when glucose is high and slows gastric emptying. 1
Half-life engineering
Native GLP-1 survives about two minutes; semaglutide lasts roughly a week. Two changes achieve that: an Aib substitution that blocks the enzyme DPP-4 from cutting the peptide, and a fatty acid chain that parks the molecule on albumin. It is one of the clearest worked examples of peptide half-life extension in the literature.
Metabolic research
A large clinical literature covers effects on blood glucose and body weight. Those trials used pharmaceutical-grade product under medical supervision, which is a materially different context from research-grade material. 1
References
- 1Once-Weekly Semaglutide in Adults with Overweight or Obesity (the STEP 1 trial). N Engl J Med (2021). PMID 33567185
Links open the record on PubMed or PubMed Central. These are citations to published research, not claims about this product.
Compare Semaglutide
Laboratory uses
Applications
Where Semaglutide is used in the laboratory
- GLP-1 receptor binding and signalling studies
- Comparative potency profiling against native GLP-1 and other analogues
- Albumin-binding and half-life extension research on acylated peptides
- Analytical characterisation of long-acting incretin analogues
Batch COA
Verification
Does Semaglutide come with a COA?
Yes — every box. Each batch of Semaglutide is analysed by an independent third-party laboratory, and the certificate is tied to the batch number on the vial label.
Example COA. You receive the certificate matching your own batch.
Questions & answers
Questions
Semaglutide questions, answered
Is semaglutide a peptide?
Yes. Semaglutide is a synthetic 31-residue peptide, an analogue of the naturally occurring peptide hormone GLP-1. The substitutions and the C18 diacid chain it carries are modifications to that peptide backbone rather than something that makes it a different class of molecule.
Is GLP-1 a peptide?
Yes. Glucagon-like peptide-1 is an incretin peptide hormone produced in the gut, 30 or 31 amino acids long depending on the form. Semaglutide is a synthetic analogue of it, engineered to resist the enzyme that clears the natural version within minutes.
Is research semaglutide the same as the licensed medicine?
The molecule is the same peptide. The difference is regulatory rather than chemical: a licensed medicine is made and released under a marketing authorisation for human use, which research-grade material is not and cannot substitute for.
Why is semaglutide described as long-acting?
Native GLP-1 is cleared within minutes by dipeptidyl peptidase-4. Semaglutide carries an aminoisobutyric acid substitution at position 8 that blocks that cleavage site, plus a C18 diacid chain that binds serum albumin. Together these extend the circulating half-life from minutes to roughly a week.
How much does Semaglutide cost?
Semaglutide starts at $5.50 per vial, sold in boxes of 10 vials at $55.00 per box (about £41.21). 8 strengths available: 2 mg, 5 mg, 10 mg, 15 mg, 20 mg, 30 mg, 40 mg, 50 mg. There is no minimum order.
Can I buy Semaglutide 10mg vials in the UK?
Yes. Semaglutide 10mg comes in boxes of 10 vials at $74.71 per box ($7.47 per vial, about £55.97 per box), sent tracked to UK addresses. There is no minimum order.
Do you ship Semaglutide to the US?
Yes, to all 50 states. Semaglutide ships FedEx tracked from our UK stock or direct from our verified manufacturer, arriving 5 to 8 working days after dispatch, and is billed in US dollars from $5.50 per vial. We hold no US stock. If US customs seize an order, we reship it once at no cost. Our semaglutide US guide covers FDA status and US shipping in full.
How is Semaglutide shipped to the UK and USA?
Tracked to the UK, USA, EU and worldwide, in plain packaging, dispatched within 1–2 working days. Country-by-country estimates are on the shipping page.
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